Synonyms of the word

withdrawn

• adj. removed from circulation.
• adj. introverted; not inclined to interact with other people.
• v. past participle of withdraw.

indrawn

• adj. Having been drawn in or inward.
• adj. Quiet, introspective.

recluse

• adj. (now rare) Sequestered; secluded, isolated.
• adj. (now rare) Hidden, secret.
• n. A person who lives in self-imposed isolation or seclusion from the world, especially for religious purposes;…
• n. (obsolete) The place where a recluse dwells; a place of isolation or seclusion.
• n. (US) A brown recluse spider.
• v. (obsolete) To shut; to seclude.

reclusive

• adj. Of, characterized by, or preferring privacy and isolation; secluded.

reserved

• v. simple past tense and past participle of reserve.
• adj. (comparable) Slow to reveal emotion or opinions.
• adj. (not comparable) Set aside for the use of a particular person or party.

unsocial

• adj. Not social.
• adj. Inhospitable.